The 49ers didn't have a fullback on the roster last season. Bruce Miller was the team's fullback the previous season and was trying to convert to a tight end in Chip Kelly's offense, but legal problems led the 49ers to release Miller a week prior to the start of the regular season.

Juszczyk, who turns 26 in April, was a fourth-round selection out of Harvard by Baltimore in the 2013 NFL Draft. He was selected to the Pro Bowl last season and was a 2016 First-Team All-Pro. Juszczyk has been a capable receiver as well. He has 97 catches for 769 yards and five touchdowns since 2014.

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